Room thermostat (optional)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE
CONTACTS. CONNECTING 230 V TO THE ROOM THERMOSTAT TERMI-
NALS WILL PERMANENTLY DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do not take the power supply for
these devices from their breaking contacts Their power supply must be by
means of direct connection from the mains or with batteries, depending on the
kind of device.
Accessing the electrical terminal block
The electrical terminal block can be accessed after removing the casing. The arrange-
ment of the terminals for the various connections is also given in the wiring diagram in
fig. 24.
72
139
fig. 7 - Accessing the terminal block
3.6 Fume ducts
Important
The unit is a "C type" with sealed chamber and forced draught, the air inlet and fume out-
let must be connected to one of the following extraction/suction systems. The unit is ap-
proved for operation with all the Cny flue configurations given on the dataplate. Some
configurations may be expressly limited or not permitted by law, standards or local reg-
ulations. Before installation, check and carefully follow the instructions. Also, comply with
the instructions on the positioning of wall and/or roof terminals and the minimum distanc-
es from windows, walls, ventilation openings, etc.
Baffles
Boiler operation requires fitting the baffles supplied with the unit, according to the follow-
ing tables.
Before inserting the fume outlet pipe, it is therefore necessary to check there is the right
diaphragm (when it is to be used) and that it is correctly positioned.
To replace the baffle (rif. 1 - fig. 8), proceed as indicated in fig. 8.
30
EN
1
fig. 8
cod. 3541G922 - Rev. 01 - 04/2018
DIVAcondens F24/F28
Connection with coaxial pipes
fig. 9 - Examples of connection with coaxial pipes (
Table. 2 - Typology
Type
Description
C1X
Wall horizontal exhaust and inlet
C3X
Roof vertical exhaust and inlet
For coaxial connection, fit the unit with one of the following starting accessories. For the
wall hole dimensions, refer to the figure on the cover. Any horizontal sections of the fume
exhaust must be kept sloping slightly towards the boiler, to prevent possible condensate
from flowing back towards the outside and causing dripping.
Ø 100
Ø 60
041002X0
041001X0
fig. 10 - Starting accessory for coaxial ducts
Table. 3 - Baffles for coaxial ducts
DIVAcondens F24
Max. permissible length
Reduction factor 90° bend
Reduction factor 45° bend
Baffle to use
DIVAcondens F28
Max. permissible length
Reduction factor 90° bend
Reduction factor 45° bend
Baffle to use
= Air /
Ø 127
Ø 80
041006X0
Coaxial 60/100
Coaxial 80/125
6 m
12 m
1 m
0.5 m
0.5 m
0.25 m
0 ÷ 2 m
Ø 45
0 ÷ 6 m
2 ÷ 4 m
Ø 50
6 ÷ 12 m
4 ÷ 6 m
no baffle
Coaxial 60/100
Coaxial 80/125
4 m
12 m
1 m
0.5 m
0.5 m
0.25 m
Ø 50
0 ÷ 2 m
0 ÷ 6 m
2 ÷ 4 m
no baffle
6 ÷ 12 m
= Fumes)
Ø 45
no baffle
Ø
no baffle